It’s early in the morning and I can hear the sudden twittering and chattering of birds. It’s so loud it must be in the room. There’s a piercing song and some calling going on but I can’t see anything. Where’s it coming from? I walk to the window and see that the young Swallows are back and there are five of them perched on my bedroom window ledge. I know they’ll fly as soon as they see movement or hear me so I move slowly and silently to get my camera and move stealthily towards them. If only my windows weren’t so filthy.